Improvement in apparatus for removing oil from vegetable and other matters



UNITED lSTATES PATENT GEETCE.

THOMAS SIM, or BALTIMORE, MARYLAND.

IMPROVEMENT IN APPARATUS FOR REMOVING OIL FROM VEGETABLE AND OTHERMATTERS.

Specication forming part of Letters Patent No. 112,389, dated' March 7,1871.

I, THOMAS SIM, of the city` and county of Baltimore, Maryland,haveinventedan lmproved Apparatus for -Removing Oil from Vegetable andother Matter, of which the following is a specification:

Nature cmd Objects of the 'Invention My invention relates to anapparatus in which a series of inclined vats is employed in connectionwith a single evaporating apparatus.

It is found by experiment that bisulphide of carbon penetrates the meal,and that the combined chemical and oil `flow off with greater freedom ininclined vats than in vertical ones. By inelining the vats the meal isalso caused to descend freely to their bottoms in the act ,y ofdischarging` without liability of caking or adhering on their sides.

` A third advantage of this arrangement is that it affords greaterrooniaround the tops of the vats for feeding the Same, while theirl lowerends are brought in closer proximity to the separator.

The vats are arranged around the upper surface of the evaporating-tankand supported in any suitable manner, so that their charges, after beingfreed from oil, may be successively y introduced intosaidevaporating-tank and the vat relled with meal.

Description of the Acconwfmying Drawing.

Figure l is a central vertical section (partly in elevation) of theapparatus, the screw-conveyer, as shown, being larger than is employedin practice. Fig. 2 is a top view, a portion of .the upper tloor forsustaining the vats being removed. Fig. 3 is a vertical section of a vaton a line transverse to Fig. 1.

General Description.

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and four feet in diameter, each vat would be about eight .feet high andthree feet in diameter, though these relative proportions are notessential. Each of the vats A has a pipe, D, near its base, for theadmission and withdrawal of the liquid bisulphide, the oritice beingprovided with a diaphragm and a pipe, E, near the top, for the dischargeof the mingled oil and chemical, the exit of the meal therewith beingprevented by a diaphragm, E, near the top of the vat, but below thedischarge-pipe E. This diaphragm is supported in position in any propermanner, and has an aperture, 7L, covered with a meshed cover, soarranged as to be opened and closed simultaneously with the disk whichcloses the feed-aperture F in the top of the vat, through which meal isintroduced. Each vat has also at bottom, extending through the tube O,andnearly corre- .spondin g thereto in diameter, so as to revolvefreely, a widely-dan ged endless screw, Gr, journaled and rotated in anyconvenient manner.

A screw of three inches in diameter will suffice to discharge a vat ofthe dimensions named above.

The descending branch C of the tube G is provided with a faucet, c, byturning which the meal is permitted to pass into the tank under theimpulsion of the screw Gr.

The evaporatingtank B may be similar to that described in patent to E.S. Hutchinson of July 26, 1870, in which steam is introduced, throughpipes on one side of the tank, within a series of hollow shelves orledges, and discharged, after condensation, at the other side,

while the meal is passed between the shelves and gradually forceddownward by a series of arms rotated by a geared shaft.

I do not claim this form of vaporizing-tank as my invention, nor do-Iconfine myself thereto in practice, as my vats may be adapted to otherdescriptions of tanks.

` Operation.

The vats A are successively filled with meal, and the liquid bisulphideof carbon, ori-equivalent, admitted thereto, permeatin g it, and nallyilowing off at top through the pipe E. When it is found, by thebisulphide flowing oft clear, that the oil is thoroughly extracted fromthe meal in the vat where the operation was rst commenced, the supply ofliquid is eut ott' and the meal drained. The faucet c of the tube C isthen turned and the sereW G revolved, so as to rapidly withdraw thepartiallydry meal from the Vat, allowing it to fall into the heated tankB, Where, during its downward passage to the discharge-aperture I, thebisulphide is vaporized, escaping through a pipe near the top of thetank and being conducted to a chamber, where it is reeondensed forfuture use.

It may be proper to remark that the Whole of the meal is not withdrawnfrom eaeh vat at each operation. That part which was at the top of thecharge having become elotted or eaked is allowed to remain, and isdisintegrated by the aseendin g current of liquid which is admitted whenthe vat is 4charged anew. lt is then Withdrawn with this next charge, anew cake being formed on top, as before.

. Claims.

I claim as my invention- 1. The inclined vats A A, 86e., constructed,

arranged, and operating substantially as and v for the purposespecified.

2. The combination and arrangement of a series of inclined vats, asherein described7 with an e\f*aporatingeylinder, substantially as andfor the purposes set forth.

THOS. SIM. Witnesses:

Oornvrus KNIGHT, WM. H. BRERETON, Jr.

